Wikipedia
Clustrix
Clustrix, Inc. is a San Francisco-based company that develops a NewSQL Database. The company was founded by Paul Mikesell (formerly of EMC Isilon) and Sergei Tsarev (developer of Simple Time-series Database) and is headed by Mike Azevedo. The company is privately held, and is backed by HighBAR Ventures, Sequoia Capital, U.S. Venture Partners (USVP), and ATA Ventures. Clustrix is a distributed primary SQL database.